Eh, as someone with PTSD, I don't really find it acceptable for someone with this condition to NOT be working on themselves. Yes, my PTSD is in the severe category, too. However, I would never think of being involved with someone if I wasn't working on myself. I understand that he helps with the kids and stuff, but he isn't keeping up with his end of the bargain in your marriage. I hope you can seek out marriage counseling and he will get treatment for himself